Cooking stove



March 2, 1937. G, E PlCKUP 2,072,276

COOKING sTovE Filed June 11, 1954 3 Sheets-Sheet 1 G. E. PICKUP COOKINGSTOVE Filed June 11. 1954 March 2, 1937.

3 Sheets-Sheet 2 f @more G6059@ ,5.

March 2, 1937. G. E. PICKUP COOKING STOVE Filed June 1l, 1954 ssheets-sheet 3 Nm.. MM,

Patented Mar., 2, 1937 l I,

UNITED STATES PATENT ormai;`

Application June ll, 1934, Serial No. '129,966

5 Claims.

This invention pertains to cooking stoves and has more particularreference te an improved cooking range and oven construction.

A primary object of the invention is to provide 5 a practical stoveconstruction of the character indicated, that is economical tomanufacture, is simple in design, highly efficient, neat of appearance,rigid and durable.

Another object is to provide a stove in which l all of the componentparts are made in standardized interftting units which are easilyassembled and require a minimum of fastening means to secure the sametogether.

Another object of the invention is to provide a stove having a cookingtop over an oven and in which the fuel is utilized most economically bynot only using directly transmitted heat from the heat source, but alsoby causing the hot flue gases to pass in contact with the cooking topand with all walls of the oven not heated by radiated heat from the heatsource, whereby to secure maximum heating efiiciency from a minimum offuel consumption, and in which an improved construction of the ovenreduces to a minimum the joints between the parts constituting the same.

Another object is to provide an oven in which all the essential parts ofthe structure are made of anged metal castings interfitted to thedesired form.

Another object of the invention resides in the provision of an improvedstove front in which flanges on the forward edges of the oven walls formthe principal front face of the stove, thereby eliminating the necessityfor a separate front 86 frame construction for the reception of the ovendoor. y

An additional object is to provide an oven construction in which theoven compartment is substantially surrounded by flue gas passages and in40 which the forward edges of the oven walls are flared outwardly andjoined atv the corners to form a collar-like quadrangular elementaboutthe oven opening, said element forming the front closure fo/ the iiuegas passages without joints where the closure joins the oven walls.

Other objects and advantages of the invention will become apparent fromthe following detailed description taken in connection with the ac'-companying drawings, and in which Figure 1 is a perspective view of thestove or range.

Fig. 2 is a sectional plan view taken on line 2-2 of Fig. 1. 55 Fig. 3is a fragmentary front perspective view with parts broken away to showthe oven construction. d

Fig. 4 is a fragmentary perspective view of the back of the oven withparts broken away to show the. construction. Fig. 5 is a sectionalelevation taken on line 5--5 of Fig. 2.

In general, the stove or range .of the present invention comprises alower or base frame, side and back walls supported on the frame, an ovensection between and in substantially spaced relation to the side wallsand preferably connected to the back wall, the spaces between the ovenand side walls having a fire-box and ashpit on one side and a reservoiron the other side of the oven. A cooking top is supported by the wallsand oven, and doors for closing the oven and side spaces are supportedby the front of the stove. A series of ue passages is provided about theoven compartment by means of which the hot flue gases `from the firechamber may be diverted into contact with the oven walls, and a flue isprovided in connection with the back wall of the stove for carrying offthe spent gases. The oven is attached to the one piece 'back wall whichprovides a flue 25 passage for the back of the oven, while an im' provedintegral oven front forms the front closure for the flue passages aswell as the support for the oven door.

Referring to the drawings which disclose an exemplary embodiment of theinvention, there is provided a base frame I0 supporting end walls I2 andI 3 and a. back wall member I 4 of the range. Each of these wall membersis preferably formed as a unit ot cast iron, although sheet metal ofsuitable gauge may be pressed into the required form if desired. l

Intermediate and spaced from the end walls I2 and I3 are means dening anoven indicated generally by I5.` -This oven I5 comprises plates 40dening an inner oven chamber and other plates and parts defining outerwalls spaced from the inner oven chamber and forming a plurality ofconnected ue spaces about the oven. To this end, there are provided ovenchamber side wall plates I1 and I8 and bottom and top plates I9 and 20respectively. These plates are also preferably formed of cast metal suchas iron, but they may be of pressed metal if desired. The rear edges ofthe oven forming plates are provided with oilset flanges 2l providingseats to intert with complementary anges 22 on the back wall member I4.The upper edges of plates I1 and I8 are transversely offset to provideangular anges 23 defining seats for receiving inset 55 depending flanges24 at the edges of the plate 28. The lower edge of plate I8 is alsotransversely offset to provide a longitudinal angular flange 25 fittingin a seat provided by an upstanding inset flange 28 at the edge of plateI9. Ledge means 21 is provided on the back member I4 for supporting therear edge of plate I9.

A plate 28 is provided below and in spaced relation to the oven chamberI5, and has an upstanding flange 29 at one end in engagement with anangular flange 38 on the lower edge of a vertical plate 8| which isdisposed in spaced relation to the oven side plate I8. The opposite endof the plate 28 extends beyond oven side plate I1 and has a dependingflange 32 secured by suitable bolts 33 to bosses 34 on the end wall I2of the range. A horizontal flange 35 on end wall I2 flts in a seat 38which is formed above the flange 32 to form a snug and uni-planularconnection with the plate 28. Intermediate its ends, the plate 28 isprovided with a raised portion forming a ridge 31 having at its peak aflange 38 and providing a seat for receiving a ange 39 on a portion 48formed as a downward extension of the oven side plate |1. The inner endof the plate 28 is supported upon the frame I8 by means of an angularsupport member 4I which is bolted at its upper end to a flange 42 onthel plate. A lateral flange 43 on the lower end of the support 4| isbolted to the frame member I8. The oven side plate I1 is provided with ahorizontal flange 44 upon which the adjacent end of the bottom plate I9of the oven rests.

A salient feature of the present invention resides in the simplifiedstove front construction. To the accomplishment of this, the oven sideplates I1 and I8 are preferably provided at their forward edges withintegral laterally extending flanges 45 and 48 respectively, and oventop plates I9 and 28 are provided with similar integral flanges 41 and48 respectively. Said anges are preferably extended at their ends tointerengage with parts of the adjoining flanges to define a substantialquadrangular collar or framework about the oven opening. By referring toFig. 4, it will be seen that flanges 45 and 48 are provided at theirupper ends with rearwardly offset attachment anges 49 which are securedby suitable bolts 58 to the lower edges of opposite end extensions 5| onthe flange 48. The flange 41 is provided at its opposite ends withoffset attachment flanges 52 engaging with lower end extensions 53 onthe flanges 45 and 45. This collar-like arrangement of the flanges aboutthe oven opening provides a rigid structure forming a part of the frontof the stove and is preferably in a common plane with laterallyextending flanges 54 and 55 on end walls I2 and I 3, respectively, ofthe stove.

Through this arrangement it becomes unnecessary to provide separateframework at the front of the stove for supporting closure means for theoven or other openings in the stove. The lower edge of the flange 41 andthe ends of the extensions 53 fit in a seat 55 formed at the forwardedge of the plate 28 by a longitudinal rib 51 thereon inset from theforward edge. A flange 58 on the forward edge of the plate 3| is securedto the lateral flange 48 of the plate I8, and a flange 58a on the rearedge of plate 3| engages in a seat flange I4B on the edge of back memberI4.

A cooking top 59 is supported by the end walls I2 and I3 and the backmember I4 of the stove, as well as by the upper edges of the plate 3|and the flange 48 of the oven. A casting 88 is provided to enclose thespace between the end wall I2 of the range and back member I4 to providea fire box and ashpit chamber between the oven side wall I1 and theplate I2. Means denning a ilre pot 5I are supported within this chamberadjacent the cooking top 59, and a flue opening 82 is formed in theupper part of the back member I4 to permit flue gases from the fire boxto escape through a flue 53 connected by means of a flange 84 to therear of the member I4. The ilre pot 8| is illustrated as of the typegenerally used in a coal or wood burning range, for which the presentexemplary construction has been primarily devised. Other forms of fuelmay be used with but slight modifications of structure.

'I'he wall |1 of the oven chamber will be heated by direct radiationfrom the fire pot 8|, but since the source of heat is relatively remotefrom other parts of the oven, it is apparent that uneven heating of theoven would result if provisions for conducting heat to other portions ofthe oven were not provided. To obtain uniform oven heating, therefore, adamper 85 is placed adjacent a flue opening 82 formed in a plate 85n(Fig. 5) upstanding adjacent the rear edge of plate 28. The damper 85 ismanually operable by means of an ear 85 extending above the cooking top59, and is swung into open or closed position about the axis of asupporting pin 51 to the upper end of which the ear 88 is attached. Whenthe damper is in the position shown in Fig. 5 lt effectively preventsthe flue gases from escaping through the opening 82, while with thedamper in the open position (Fig. 3) the gases will immegiatesl' escapethrough the :due opening 82 to the Not only does the damper 55 serve toclose the flue opening 52' to divert the hot flue gases about the ovenI5, but when the damper is opened to the position shown in Fig. 3, andthe gases issue directly to the flue 83, the damper will substantiallyprevent the gases from reaching parts of the cooking top 59 beyond theconfines of the damper. Therefore, when the oven is not in use, arelatively small fire in the re chamber will provide sufficient heat forordinary cooking purposes, since only a small area needs to be heated.While the oven is in use, shifting of damper 85 serves to regulate theoven heat by releasing directly to the flue all or part of the hotgases.

The rear member I4 of the stove is provided with a rearwardly protrudingportion 88 defining a substantial flue passage 89 adapted to permit thehot gases to contact the major area of the oven back. An oven back plate18 is secured across the chamber 59 to close the same from the interiorof the oven. An upstanding ange 1I on the rear edge of the oven bottomplate I 9 engages over the lower edge of the plate 18 and prevents theue gases from seeping into the oven. The upper edge of the plate 18 isseated with an angular flange 12 on the rear edge of oven top plate 28.An offset flange 12a on the upper edge of the rear plate I4 provides aseat for receiving engagement means on cooking top 59.

'Ihe lower part of the flue chamber 59 opens toward the space formedbetween plates I9 and 28. When the damper 85 is closed to shut theopening 82a, flue gases from the fire pot 8| can only escape to the flue83 by taking a path indicated by the arrows in Figs. 4 and 5 about theoven I5 by passing through the space between the top plate 28 and thecooking top 59, then downwardly in the space formed between plates |8aovac're 5 to form a separation between the fire chamber l closure forthe flue passages in the respective and the lower` flue passage beneaththe oven, so that the flue gases will not return to the fire chamber butmust passinto the chamber 69. The flanges 46, 41, and 48 form aclose-jointed front spaces behind these iianges. By having these flangesintegral with the oven plates, several joints are eliminated in thefront of the oven whereby the cost of construction is reduced. By

l diverting the hot flue gases in the circuitous path about the ovenevery wall thereof is thoroughly heated, and the utmost heatingefiiciency is' secured from a minimum fuel consumption. Since ordinarilytheilue gases wouldlbe'fdrawn immediately into the flue passage chamber89 and thereby the forward part oi the bottom plate I9 of the oven wouldnot be thoroughly heated, a baille 13 is placed diagonally across aportion of the space beneath the plate I9 from a position adjacent theopening to the chamber 69 in order to cause the gases to take acircuitous path through this lower flue passage and to direct the sameagainst all portions of the surface of the plate i9.

A hot water reservoir 14 is preferably supported within the space formedbetween the end wall I3 of the stove and the plate 3| and is placed toreceive heat from the hot ue gases passing through the passage betweenplates i 8 and 3|. The spacebelow the reservoir 14 as well as the spacebelow the oven I5 may be suitably enclosed to provide warming chambers,or utility spaces for the reception of utensils or the like. Thus, anangular sheet metal lower closure member 15 may be secured below thereservoir 14, to form a 5 utility space. Similar sheet metal closureplates may be secured to frame I6 to form a bottom for the space belowthe plate 28.

The openings in the front of the oven are preferably closed by means ofinsulated doors which may be enameled to provide a pleasing appearance.The flange 54 hingedly supports a door 18 which closes the opening tothe fire box and ashpit chamber; and a door 88 is supported by theflange 55 to close the reservoir chamber. A

55 drawer 8| is supported by the frame Ill in the utility space belowthe oven I5, and a door 82 closes the opening to the oven. The door 82may be supported by means of suitable hinges (not shown) oriv flange 41,and apertures 82 are formed in the flanges 45 and 46 for the purpose ofreceiving suitable means such as spur arms 84 for confining the forwardswing of the door 82 to a horizontal plane when open. Suitableinsulation material 85, such as asbestos, mineral wool, glass wool, orthe like, is preferably lled into the various described doors enclosingthe front of the stove so as y,to substantially prevent heat radiationwhen the doors are closed.

Ornamental columns 86 are preferably secured at each side of door 82 andextend from the frame member I0 to adjacent the cooking top 59. Columns86 are secured near their tops by means of suitable bolts or screws 81to the ends 5| of the flange 48 of the collar-like frame about the ovenopening. Tappet screws 88 or the like serve to secure the columns 86 ata point intermediate their ends, for example, to the lower exv tensions53 of flanges 45 and 46, while the lower ends of the columns 86 aresuitably secured to the framework I0. Not only do the columns 86 providea decorative effect for the front of the oven, but they also provide asubstantial-support for the front of the oven I5 on the bottom frameworkIll.

An ash receptacle 89 is supported by the plate 28 in position below firepot 6|. The plate may be provided with a plurality of upstandingtransverse ridges 90 of the same height as ridge 51 (Figs. 3 and 5) soas to maintain a spaced relationship between the ash receptacle and thesurface of the plate whereby ashes which fail to lodge in the receptaclewill not become wedged beneath the receptacle and impede insertion orremoval thereof.

A cleanout opening 9| is preferably formed in the flange 41 adjacent thebottom of the oven to clean out ashes and soot which may collectv in theflue chamber formed beneath the oven. All the joints between the variousplates forming the oven are preferably grouted with a suitable cement toinsure a gas tight structure and pre- ,vent infiltration of soot fromthe flue passages.

The side plates |1 and `lil of the oven have lugs 92 thereon forreceiving a tray (not shown).

Legs 93 are connected at the corners of the frame I8 and support thestove above a floor.

The end wall I2 of the stove may be provided with apertures to providedraft openings 94 adjacent the fire pot 6|. A removable closure member95 is provided at the top of the end wall l2 to permit the insertion offuel into the fire pot without removing closure plates 96 in the cookingtop 59. The outer faces of the end members l2 and I3 as well as thefront closure members and such other parts of the stove as may bedesired, are preferably enameled in any desired color combinations toprovide a pleasing exterior for the range.

By constructing the various parts of the stove as cast units havingflanged edges vto intert with or form supports for adjoining parts ofthe construction, there is secured a simple yet effective connection ofthe parts which requires a minimum of bolts or screws in assembling therange. The parts are preferably constructed as standardized units andare easily and quickly assembled into the finished structure.

I will state in conclusion that while the illustrated embodiment of theinvention discloses a preferred form, it is to be understood that thesame may be considerably modified in detail without departing from thescope of the appended claims.

I claim as my invention:

1. A stove including a base framework and having an oven compartment, afront surface thereon surrounding the opening to said oven, a closuremember supported by and engaging said surface and adapted to close theoven front, the side margins of said closure member extending short ofthe vertical marginal edges of said surface, and decorative supportingcolumns secured to said surface beside said closure member and extendingto and being secured to said framework, whereby the front of the oven issupported by said columns and said surface is substantially entirelyconcealed by said closure and columns..

`2. A stove comprising a bottom, vertical side plates, a rear memberdefining a flue passage, an oven between and spaced from said sideplates,

said oven having double walls deiining-iiue gas passages along its top,one side wall and bottom and communicating with said rear iiue passage,a fire-box in the space between the other `wall of said oven and theadjacent side plate and having a connection with said iiue gas passages,the top, one side and bottom oven walls having integrally cast,laterally extending flanges at their forward edges forming closures forsaid iiue passages, said iianges also forming a substantial part of thefront of said stove, lateral flanges on the side plates and lying in acommon plane with said laterally extending oven wall flanges, andclosure means carried by said flanges to close the openings in the frontof the stove.

3. A stove construction comprising a fire chamber; an oven on one side.of said fire chamber including top, bottom, rear and spaced sideplates; enclosing top and bottom walls spaced from said oven top andbottom plates, respectively, and an enclosing side wall spaced from theoven side plate remote from said re chamber; laterally extending iiangesformed integrally with the forward edges of said oven plates andconnected together at their adjoining edges to define a rigid collarlikestructure deiining the mouth of the oven and holding the plates firmlytogether; the outer edges of the top and bottom plate flanges and theiiange on said remote side plate being connected with said top, bottom,and side walls, respectively, and thus forming enclosing flue spacesabout the top, remote side and bottom of the oven from which wasteproducts are permanently excluded from entering the oven chamber alongthe -front edges of the oven plates due to the integral arrangement ofsaid lateral flanges.

4. In an oven construction for cook stoves, the combination of aplurality of plates forming spaced side, top and bottom walls of theoven chamber; said plates being connected along their adjoining edges toform a substantially tight enclosure; integrally formed angular flangesof substantial width extending laterally of the front margin of each ofsaid plates; and extensions on the ends of said flanges connectingadjacent anges and securing the same into a rigid frame dening the mouthof said oven chamber; said frame serving as the front wall of the stoveabout the oven mouth.

5. In a stove construction, comprising, in combination, an ovenincluding spaced side walls and top and bottom walls connected in sealedrelation, the front margins of said side and bottom walls having iiangesformed integrally thereon extending laterally in substantially the sameplane and serving as a substantial part of the front of the stovesurrounding the mouth of the oven, each of said flanges on said sidewalls having an aperture therein adjacent its lower end, and anoven doorsupported by the ange on said lower wall and having parts extending intosaid apertures.

GEORGE E. PICKUP.

